Question 1 1.1 Silica gel chromatography: This is known as the stationary phase in column chromatography. Firstly‚ the tapered exit of the column is sealed using porous material. This porous material serves as support for the packing material‚ and prevents it from exiting the pipe. Thereafter‚ silica gel is compacted into the glass pipe to make the separating column. In finishing preparation of the column‚ the solvent which is used as the mobile phase is then passed through the dry column. Then the
Premium Chromatography Chromatography High performance liquid chromatography
Lab #5: Refraction of Light Theory: Refraction can be defined as the bending of a wave when it enters a medium which causes it to have some reduced speed. In terms of light‚ refraction occurs when the ray passes through some medium which slows its speed; such as water or glass. In this instance the ray tends to bend towards the normal of the medium. The amount of bending or refraction which occurs can be calculated using Snell’s Law (). Objective: To measure the index of refraction of Lucite
Premium Angle of incidence Total internal reflection Geometrical optics
Experiment 4 – Liquid Phase Chromatography I. Objectives This experiment’s goal is to explore one-dimensional and two-dimensional paper chromatography. II. Schematic Diagram of the Procedure PAPER CHROMATOGRAPHY Wash leaves‚ cut them into smaller pieces; in a mortar macerate them in circular motion Add 8mL ethyl alcohol to extract pigments‚ continue macerating until finely grounded Transfer extract to evaporating dish‚ allow to conc‚ don’t let extract to dry out Concentration
Premium Central nervous system Nervous system Water
ANTIOXIDATIVE PROPERTY OF SOURSOP LEAF EXTRACT A Research Proposal Presented to The Faculty of University of Baguio Science High School In Partial Fulfillment Of the Requirements for the Subject Research III Quimson‚ Crystal Ivy O. Osias‚ Dymphna Xel D. Choi‚ Brian March 2012 TABLE OF CONTENTS Title page. . . . . . . . . . . . . . . . . . . . . . . . i Table of contents. . . . . . . . . . . . . . . . . . . . ii CHAPTER I: THE PROBLEM Background of the Study . . . . . . . . . . . . . . .
Premium Cancer Antioxidant
Separating Water Soluble and Acetone Soluble Inks through Chromatography Abstract: Chromatography is a term used to define a set of laboratory techniques for the separation of mixtures. Through Chromatography we analyzed complex mixtures. In our recent lab we analyzed complex mixtures. The purpose of this lab was to find whether the water soluble or acetone soluble liquid traveled farther. In our recent lab we measured the distance traveled by the different colored water and acetone soluble
Premium Chromatography Gas chromatography Analytical chemistry
Marketing Plan of Maple Leaf Cement Muhammad Abrar Naeem ID # 081134-061 Date: 25-11-08 Marketing Plan of Maple Leaf Cement Company Introduction The Kohinoor Maple Leaf is a reputable and leading manufacturer of textiles and cement. KMLG comprises of Kohinoor Textile Mills Limited (KTML) and Maple Leaf Cement Factory Limited (MLCF). Both companies are incorporated in Pakistan and are listed on three stock exchanges if the country. Maple Leaf Cement is the third largest cement factory
Premium Marketing Portland cement
The Red Tree is another outstanding book by Australian illustrator and author Shaun Tan. The book published by Hachette Australia in 2001 leads us on one girl’s journey through a dark and confusing path of depression. Although each page contains a few words it is the images that capture the reader’s attention with new objects‚ images and meanings discovered each time the book is reopened. Shaun Tan has had an impressive illustrative career spanning over fifteen years. He has won various awards
Premium Woman Love Family
“Gwilan’s Harp” by Ursula K. LeGuin‚ “The Washwoman” by Isaac Singer‚ and “The Last Leaf” by O. Henry‚ the concept of loss plays a common theme throughout the characters’ lives. Loss can be attributed to many things‚ including people‚ but in these short stories it is nonhuman things in particular that can serve to teach lessons: the harp in “Gwilan’s Harp”‚ the linens in “The Washwoman” and the vine in “The Last Leaf”. Each of these physical objects takes part in a form of loss that serves to help
Premium Short story Fiction Literature
Case study: Maple Leaf Shoes Ltd. BBA Student name: Teacher name: Date: Contents What’s The Case Maple Leaf Shoes Ltd. was established in 1969 in Mario Mancini. It is one of the key manufacturers of leather and vinyl shoes in Wilmington Ontario. Currently‚ it hires more than 400 employees in its Ontario plant and 380 employees in offices and warehouses all over the world. Robert Clark is the president and chief shareholder
Premium Human resources Human resource management
Biodiversity of invertebrates found in leaf litter in the Solebury woods Introduction: We are trying to compare the biodiversity of leaf litter invertebrates in forested areas on each side of the horseshoe trail on Solebury School’s campus. Each area has significantly different ecological histories. Leaf litter invertebrates are essential to the forests wood web. At the base off the food web are the main producers which would be trees or shrubbery. Then there are the primary
Premium Ecological succession Ecology Ecosystem